Thoroughly combine rice flour, grated coconut, half of the cumin seeds and salt using your hands,Keep it aside for 1 hour
Heat a wide and heavy bottomed pan
Throw in the rest of the cumin seeds and lightly roast it
Add the rice flour and coconut mixture to the pan
Fry everything on medium heat, stirring continuously till it becomes a light brown color
You will need to stir continuously so that the powder does not stick to the bottom of the pan
It will take atleast 25-30 minutes for the powder to get roasted thoroughly
So, please be patient
Allow it to cool completely and store in airtight containers